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Suppose g(x), h(x), and j(x) are differentiable functions with

values of the function and its derivative given in the following table:

iff(x)=g(x)h(x)+j(x)h(x)findf'(-1)

Short Answer

Expert verified

The value off'(-1)is-1+20,here20isnotdefined

Step by step solution

01

Step1. Given information 

Values of the function and its derivative given.

We have to find out the values of f'(-1)

02

Step 2. Finding the derivatives of the given function

Heref(x)=g(x)h(x)+j(x)h(x),=g(x)+j(x)h(x)Whenwedodifferentiation,wegetf'(x)=g'(x)+j(x)h(x)'Byapplyingthequotientrule,wegetj(x)h(x)'=j'(x)h(x)-j(x)h'(x)(h(x))2sincethequotientrule:fg'(x)=f(x)'g(x)โˆ’f(x)g(x)'(g(x))2thenf'(x)=g'(x)+j'(x)h(x)-j(x)h'(x)(h(x))2

03

Step 3. Finding the value of f'(-1)

Sincef'(x)=g'(x)+j'(x)h(x)-j(x)h'(x)(h(x))2thenf'(-1)=g'(-1)+j'(-1)h(-1)-j(-1)h'(-1)(h(-1))2Fromthetablewegetvalues,g'(-1)=-1,j'(-1)=-2,h'(-1)=-2,j(-1)=1,h(-1)=0substitutethesevaluesonf'(-1).thenwegetf'(-1)=g'(-1)+j'(-1)h(-1)-j(-1)h'(-1)(h(-1))2=-1+-2ร—0-1ร—-202=-1+20,here20isnotdefined

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Most popular questions from this chapter

Every morning Linda takes a thirty-minute jog in Central Park. Suppose her distance s in feet from the oak tree on the north side of the park tminutes after she begins her jog is given by the function s(t)shown that follows at the left, and suppose she jogs on a straight path leading into the park from the oak tree.

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